Good Vanilla is hard to come by, no honestly, especially when it comes to extracts. A good portion of cheap Vanilla extracts and essences are made from Vanillin and not Vanilla. Vanillin, is often a by-product of whole Vanilla beans but some of it is produced from the bark of trees or is completely artificial. While it is often totally fine to use, and isn’t “bad” for you, it doesn’t get that pure Vanilla flavor that I think a lot baking or sweet recipes need.